Source and acquisition of rhizosphere microbes in Antarctic vascular plants
Rhizosphere microbial communities exert critical roles in plant health, nutrient cycling, and soil fertility. Despite the essential functions conferred by microbes, the source and acquisition of the rhizosphere are not entirely clear. Therefore, we investigated microbial community diversity and pote...
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crfrontiers:10.3389/fmicb.2022.916210 2024-09-15T17:48:23+00:00 Source and acquisition of rhizosphere microbes in Antarctic vascular plants Guajardo-Leiva, Sergio Alarcón, Jaime Gutzwiller, Florence Gallardo-Cerda, Jorge Acuña-Rodríguez, Ian S. Molina-Montenegro, Marco Crandall, Keith A. Pérez-Losada, Marcos Castro-Nallar, Eduardo 2022 http://dx.doi.org/10.3389/fmicb.2022.916210 https://www.frontiersin.org/articles/10.3389/fmicb.2022.916210/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Microbiology volume 13 ISSN 1664-302X journal-article 2022 crfrontiers https://doi.org/10.3389/fmicb.2022.916210 2024-06-25T04:05:12Z Rhizosphere microbial communities exert critical roles in plant health, nutrient cycling, and soil fertility. Despite the essential functions conferred by microbes, the source and acquisition of the rhizosphere are not entirely clear. Therefore, we investigated microbial community diversity and potential source using the only two native Antarctic plants, Deschampsia antarctica (Da) and Colobanthus quitensis (Cq), as models. We interrogated rhizosphere and bulk soil microbiomes at six locations in the Byers Peninsula, Livingston Island, Antarctica, both individual plant species and their association (Da.Cq). Our results show that host plant species influenced the richness and diversity of bacterial communities in the rhizosphere. Here, the Da rhizosphere showed the lowest richness and diversity of bacteria compared to Cq and Da.Cq rhizospheres. In contrast, for rhizosphere fungal communities, plant species only influenced diversity, whereas the rhizosphere of Da exhibited higher fungal diversity than the Cq rhizosphere. Also, we found that environmental geographic pressures (i.e., sampling site, latitude, and altitude) and, to a lesser extent, biotic factors (i.e., plant species) determined the species turnover between microbial communities. Moreover, our analysis shows that the sources of the bacterial communities in the rhizosphere were local soils that contributed to homogenizing the community composition of the different plant species growing in the same sampling site. In contrast, the sources of rhizosphere fungi were local (for Da and Da.Cq) and distant soils (for Cq). Here, the host plant species have a specific effect in acquiring fungal communities to the rhizosphere. However, the contribution of unknown sources to the fungal rhizosphere (especially in Da and Da.Cq) indicates the existence of relevant stochastic processes in acquiring these microbes. Our study shows that rhizosphere microbial communities differ in their composition and diversity. These differences are explained mainly by the microbial ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Livingston Island Frontiers (Publisher) Frontiers in Microbiology 13 |
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Rhizosphere microbial communities exert critical roles in plant health, nutrient cycling, and soil fertility. Despite the essential functions conferred by microbes, the source and acquisition of the rhizosphere are not entirely clear. Therefore, we investigated microbial community diversity and potential source using the only two native Antarctic plants, Deschampsia antarctica (Da) and Colobanthus quitensis (Cq), as models. We interrogated rhizosphere and bulk soil microbiomes at six locations in the Byers Peninsula, Livingston Island, Antarctica, both individual plant species and their association (Da.Cq). Our results show that host plant species influenced the richness and diversity of bacterial communities in the rhizosphere. Here, the Da rhizosphere showed the lowest richness and diversity of bacteria compared to Cq and Da.Cq rhizospheres. In contrast, for rhizosphere fungal communities, plant species only influenced diversity, whereas the rhizosphere of Da exhibited higher fungal diversity than the Cq rhizosphere. Also, we found that environmental geographic pressures (i.e., sampling site, latitude, and altitude) and, to a lesser extent, biotic factors (i.e., plant species) determined the species turnover between microbial communities. Moreover, our analysis shows that the sources of the bacterial communities in the rhizosphere were local soils that contributed to homogenizing the community composition of the different plant species growing in the same sampling site. In contrast, the sources of rhizosphere fungi were local (for Da and Da.Cq) and distant soils (for Cq). Here, the host plant species have a specific effect in acquiring fungal communities to the rhizosphere. However, the contribution of unknown sources to the fungal rhizosphere (especially in Da and Da.Cq) indicates the existence of relevant stochastic processes in acquiring these microbes. Our study shows that rhizosphere microbial communities differ in their composition and diversity. These differences are explained mainly by the microbial ... |
format |
Article in Journal/Newspaper |
author |
Guajardo-Leiva, Sergio Alarcón, Jaime Gutzwiller, Florence Gallardo-Cerda, Jorge Acuña-Rodríguez, Ian S. Molina-Montenegro, Marco Crandall, Keith A. Pérez-Losada, Marcos Castro-Nallar, Eduardo |
spellingShingle |
Guajardo-Leiva, Sergio Alarcón, Jaime Gutzwiller, Florence Gallardo-Cerda, Jorge Acuña-Rodríguez, Ian S. Molina-Montenegro, Marco Crandall, Keith A. Pérez-Losada, Marcos Castro-Nallar, Eduardo Source and acquisition of rhizosphere microbes in Antarctic vascular plants |
author_facet |
Guajardo-Leiva, Sergio Alarcón, Jaime Gutzwiller, Florence Gallardo-Cerda, Jorge Acuña-Rodríguez, Ian S. Molina-Montenegro, Marco Crandall, Keith A. Pérez-Losada, Marcos Castro-Nallar, Eduardo |
author_sort |
Guajardo-Leiva, Sergio |
title |
Source and acquisition of rhizosphere microbes in Antarctic vascular plants |
title_short |
Source and acquisition of rhizosphere microbes in Antarctic vascular plants |
title_full |
Source and acquisition of rhizosphere microbes in Antarctic vascular plants |
title_fullStr |
Source and acquisition of rhizosphere microbes in Antarctic vascular plants |
title_full_unstemmed |
Source and acquisition of rhizosphere microbes in Antarctic vascular plants |
title_sort |
source and acquisition of rhizosphere microbes in antarctic vascular plants |
publisher |
Frontiers Media SA |
publishDate |
2022 |
url |
http://dx.doi.org/10.3389/fmicb.2022.916210 https://www.frontiersin.org/articles/10.3389/fmicb.2022.916210/full |
genre |
Antarc* Antarctic Antarctica Livingston Island |
genre_facet |
Antarc* Antarctic Antarctica Livingston Island |
op_source |
Frontiers in Microbiology volume 13 ISSN 1664-302X |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmicb.2022.916210 |
container_title |
Frontiers in Microbiology |
container_volume |
13 |
_version_ |
1810289529708347392 |